diff --git a/README.md b/README.md
index 2567815..7d5afbd 100644
--- a/README.md
+++ b/README.md
@@ -25,23 +25,25 @@ This repository contains a Symfony 7.3 (PHP >= 8.5.1) application for a collabor
      - `php bin/console doctrine:migrations:migrate -n`
   4. App is at http://localhost:8080
 
-## Email (Mailpit in dev, SendGrid for prod)
+## Email (Mailpit in dev, Mailgun for prod)
 - Dev: a `mailer` service (Mailpit) runs in Docker.
   - SMTP DSN in `.env`: `MAILER_DSN=smtp://mailer:1025`
   - Mailpit UI: http://localhost:8025 (or mapped port 8025)
   - Send a test mail: `php bin/console app:mail:test you@example.com`
-- Staging/Prod: use SendGrid.
-  - Require package (already in composer): `symfony/sendgrid-mailer`.
+- Staging/Prod: use Mailgun.
+  - Require package (already in composer): `symfony/mailgun-mailer`.
   - Set environment variables (do NOT commit secrets):
-    - `MAILER_DSN=sendgrid+api://%env(SENDGRID_API_KEY)%`
-    - `SENDGRID_API_KEY=YOUR_REAL_KEY`
+    - `MAILER_DSN=mailgun+api://${MAILGUN_API_KEY}:${MAILGUN_DOMAIN}@default?region=eu`
+    - `MAILGUN_API_KEY=YOUR_REAL_KEY`
+    - `MAILGUN_DOMAIN=YOUR_SENDING_DOMAIN` (e.g. `mg.escapepage.nl`)
     - Optional: `MAILER_FROM=no-reply@your-domain.tld`
+  - Drop `region=eu` (or use `region=us`) depending on which region your Mailgun domain was created in.
   - Alternatively via SMTP (no extra package):
-    - `MAILER_DSN="smtp://apikey:%env(SENDGRID_API_KEY)%@smtp.sendgrid.net:587?encryption=tls"`
+    - `MAILER_DSN="mailgun+smtp://USERNAME:PASSWORD@default?region=eu"`
 
 Troubleshooting:
 - If emails don’t appear in dev, open Mailpit at http://localhost:8025 and verify messages.
-- In prod, check logs for HTTP 2xx responses from SendGrid and verify sender domain is verified in SendGrid.
+- In prod, check logs for HTTP 2xx responses from Mailgun and verify sender domain is verified (SPF/DKIM) in Mailgun.
 
 ## Frontend assets with Webpack Encore
 We use Webpack Encore to build and minify JS/CSS from the `assets/` directory into `public/build/`.
diff --git a/composer.json b/composer.json
index 160a78f..ff3f8e7 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,6 @@
         "phpstan/phpdoc-parser": "^2.3.2",
         "symfony/asset": "7.4.*",
         "symfony/asset-mapper": "7.4.*",
-        "symfony/brevo-mailer": "7.4.*",
         "symfony/console": "7.4.*",
         "symfony/doctrine-messenger": "7.4.*",
         "symfony/dotenv": "7.4.*",
@@ -27,6 +26,7 @@
         "symfony/http-client": "7.4.*",
         "symfony/intl": "7.4.*",
         "symfony/mailer": "7.4.*",
+        "symfony/mailgun-mailer": "7.4.*",
         "symfony/mercure-bundle": "^0.3.9",
         "symfony/mime": "7.4.*",
         "symfony/monolog-bundle": "^3.11.2",
diff --git a/doc/email.md b/doc/email.md
index 565ae07..596fb7b 100644
--- a/doc/email.md
+++ b/doc/email.md
@@ -1,9 +1,9 @@
-# Email Delivery: Dev Mailcatcher & Production SendGrid
+# Email Delivery: Dev Mailcatcher & Production Mailgun
 
 This application uses Symfony Mailer. We separate development and production delivery:
 
 - Development: Mailpit (mailcatcher) via SMTP in Docker.
-- Production: SendGrid via API transport.
+- Production: Mailgun via API transport.
 
 ## Development (Mailpit)
 
@@ -22,24 +22,27 @@ MAILER_DSN=smtp://mailer:1025
   2. Send an email from the app.
   3. Open http://localhost:8025 to view captured emails.
 
-## Production (SendGrid)
+## Production (Mailgun)
 
-Use the SendGrid API transport. Do not commit secrets.
+Use the Mailgun API transport (`symfony/mailgun-mailer` bridge). Do not commit secrets.
 
 - Example configuration is in `.env.prod`:
 
 ```
-MAILER_DSN=sendgrid+api://%env(resolve:SENDGRID_API_KEY)%@default
+MAILER_DSN=mailgun+api://${MAILGUN_API_KEY}:${MAILGUN_DOMAIN}@default?region=eu
 ```
 
-- Provide `SENDGRID_API_KEY` via:
-  - Real environment variable on the server/container, or
-  - Symfony secrets: `php bin/console secrets:set SENDGRID_API_KEY` (and dump for prod), or
+- `region=eu` is only needed if the Mailgun account/domain was created in Mailgun's EU region (common for `.nl`/EU-based senders). Drop it (or use `region=us`) if the domain lives in the US region.
+- Provide `MAILGUN_API_KEY` and `MAILGUN_DOMAIN` via:
+  - Real environment variables on the server/container, or
+  - Symfony secrets: `php bin/console secrets:set MAILGUN_API_KEY` (and dump for prod), or
   - Orchestration secret stores (e.g., Docker/K8s).
+- The sending domain must be added and DNS-verified (SPF/DKIM/tracking CNAME) in the Mailgun dashboard before production sending will work reliably; unverified domains are rate-limited/sandboxed.
 
 ### Notes
 - No Mailpit container is defined in the base `compose.yaml`, only in `compose.override.yaml`. This ensures it is used in development only.
 - To test email locally without Docker, you can:
   - Run Mailpit on your host (ports 1025/8025) and set `MAILER_DSN=smtp://127.0.0.1:1025` in `.env.local`.
-- If you need to use SendGrid SMTP instead of API, a DSN example:
-  `smtp://apikey:YOUR_SENDGRID_API_KEY@smtp.sendgrid.net:587`.
+- If you need to use Mailgun SMTP instead of API, a DSN example:
+  `mailgun+smtp://USERNAME:PASSWORD@default?region=eu` (username/password come from the Mailgun domain's SMTP credentials).
+- Use `php bin/console app:mail:test you@example.com` to send a quick test email against whatever `MAILER_DSN` is currently configured.
diff --git a/src/Command/TestEmailCommand.php b/src/Command/TestEmailCommand.php
index 891ce77..3e91d6b 100644
--- a/src/Command/TestEmailCommand.php
+++ b/src/Command/TestEmailCommand.php
@@ -15,7 +15,7 @@ use Symfony\Component\Mime\Email;
 
 #[AsCommand(
     name: 'app:mail:test',
-    description: 'Sends a simple test email using the configured mail transport (SendGrid in prod).'
+    description: 'Sends a simple test email using the configured mail transport (Mailgun in prod).'
 )]
 final class TestEmailCommand extends Command
 {